Trane RTHD

146 RTHD-SVX01D-EN
Diagnostics
390 BAS Failed to
Establish
Communication
Special The BAS was setup as "installed" and the BAS did
not communicate with the MP within 15 minutes
after power-up. Refer to Section on Setpoint
Arbitration to determine how setpoints and
operating modes may be effected. Note: The
original requirement for this was 2 minutes, but was
implemented at 15 minutes for RTAC.
Remote
2E6 Check Clock Info Latch The real time clock had detected loss of its oscillator
at some time in the past. Check / replace battery?
This diagnostic can be effectively cleared only by
writing a new value to the chiller's time clock using
the TechView or DynaView's "set chiller time"
functions.
Remote
8A Chilled Water
Flow (Entering
Water Temp)
Info NonLatch The entering evaporator water temp fell below the
leaving evaporator water temp. by more than 2°F for
100 °F-sec. For falling film evaporators this
diagnostic cannot reliably indicate loss of flow, but
can warn of improper flow direction through the
evaporator, misbound temperature sensors, or
other system problems
Remote
5F8 Comm Loss:
Chilled Water
Pump Starter
Info Latch Continual loss of communication between the MP
and the Functional ID has occurred for a 30 second
period.
Remote
5EF Comm Loss:
Chilled Water
Flow Switch
Immediate Latch Continual loss of communication between the MP
and the Functional ID has occurred for a 30 second
period.
Remote
6B6 Comm Loss:
Compressor %
RLA Output
Info Latch Continual loss of communication between the MP
and the Functional ID has occurred for a 30 second
period.
Remote
6B6 Comm Loss:
Compressor
Discharge
Temperature
Immediate Latch Continual loss of communication between the MP
and the Functional ID has occurred for a 30 second
period.
Remote
6B6 Comm Loss:
Cond Head Press
Cntrl Output
Info Latch Continual loss of communication between the MP
and the Functional ID has occurred for a 30 second
period.
Remote
6B6 Comm Loss:
Condenser
Entering Water
Temperature
Info and
Special
Action
Latch Continual loss of communication between the MP
and the Functional ID has occurred for a 30 second
period. If chiller running, and condenser water
regulating valve option installed, force valve to 100%
flow.
Remote
6B6 Comm Loss:
Condenser
Leaving Water
Temperature
Info Latch Continual loss of communication between the MP
and the Functional ID has occurred for a 30 second
period.
Remote
5F2 Comm Loss:
Condenser Rfgt
Pressure
Normal Latch Continual loss of communication between the MP
and the Functional ID has occurred for a 30 second
period.
Remote
Table 33 Diagnostic List
Hex
Code
Diagnostic
Name and
Source Severity Persistence Criteria
Reset
Level